Feed mechanism for perforating-machines.



G B KELLY & F L W001) FEED MECHANISM FOR PERFORATING MACHINES PatentedJan. 25, 1910. I I 2 811i: SHEET 1.

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G; B.-KELLY & r. L. WOOD. FEED MEGHANISM FOR PERIOBATING MACHINES.

" APPLICATION FILED 001. 27, 1908.

947,495. I Patented Jan. 25, 1910.

2 SHEETS-SHEET 2.

Lz/zt 5525 .zru sr-itzzzva W Azizzzza'v'ziy GEORGE 12. KELLY, or JAmAicAPLAIN, AND FREDERICK L, "woon. -1 woncn's'rnn;

- r --MASSAC1-IUSETT S. 1

Toall 'wlwm it"riiay concerns 1 I Be it, known that we, GEORGE B. KELLYand FREDERICK L;- \V0oo, citizens of. the

* United States, and residents of Jamaica.

Plain,tcounty of Suffolk, State of'Massachu'setts, and W'oroester, inthe county of \Vorcester and State of Massachusetts, 21:0"-

spectively, have invented certain new anduseful Improvements in FeedMechanism for. I *rforming-Machines, of which the fol lowing is aspecification.

This invention relates to a paper feed mechanism for perforatingmachines such' for example as machines for making slotted music sheets.

' The object of our invention is to provide a;

new and improved .paper feed mechanism which 15 simple-1njconstructlon.holds the paper firmly, securely and reliably, does not any unduefriction.v

' 50 offer undue resistance and does not produce In the accompanyingdrawings, in which like letters of reference indicate like parts in allthe figures F1gure 1 1s a side view of our nnproved paper feed.mechanism, parts being omitted and others broken away. Fig.

2 is a front end view of the same, parts being omitted.

lwo endless chains 1, such as sprocket chains, are each passed over twosprocket wheels 2 and3 mounted on the shafts 4 and res ectively, whichshafts are mounted in suita le standards (3. Cross bars 7 are lirmlysecured at their ends to the links of the sprocket chains, the upper oroutcr'faces of winch bars 7 form the supports for the superimposedlayers of paper to be perforated. Each end of each bar 7 s embraced,adjacent to the point where t is attached to a chain by the forked end 9of an angular clam )ing lever '10 pivoted to the bar at '11 and havingextensions 12 forming cams on which the free ends of springs 13 hear,there being one spring attached to each sideof each bar 7 so that onespring bears 'on the f. J-e end edge part of each 'cam part -12 of theforked part 9. A clamping block 15 is pivoted at 16 to -each lev'er 10and a spring 17 is provided, of which'one end bears on the clampingblock 15 and the other on the lever 10. A stop pin- 18 prevents thespring 17 -from tilting.

, FEED MECHANISM l on rmtronarmemacmnes.

V v Specification of Letters Iltentl a plication filed October 27, 19051Serial No. 45 9 soel3 per on the bars-7. and atthe bottom of ,2, theclamping blocks are-shown in the. p o

, sit-ions they have when they are swung down so as'to hang freely.m'lhe shaft 4 of the, 13;"

tated step by ste i froma pin projectiflg lln'oughout the wholesurface-0f this loclr.

n; grinds- Patented ".J an; 25,191

sprocket wheel 2 carries worm wheel 19 '60 i engaged bya worm 20 on ashaft 21 carry-. ing' at its upperenda beveled pinion 22 e n-. gaging abeveled cogwheel 23 mounted Iii tegral with a Geneva wheel 24 whichisirofroma disk 26 rivenby a belt27 from a,

suitable'niotor. I Adjacent to each sprocket wheel-2 and 3 are locatedthe cams28 and 29 which are secured on the.,.standardsf6., 2.;-

in the direction indicated by the arrow and as the clamping-devicesarrive a tthe cams 28 the upper. ends '30 oi thesecanis, engag ingtheparts oivpro'jecti'ons d0 of the clamp; I ing levers 10, .throw theclanifing-devi'ces ls outward or'into the position siown at} thef bottomof Fig. 2' so' asjto-rel'ease the pape 8, in which position the-clampingncansiare,

the end edges of the cam partsof the forked-die t ends of the levers10.. The-clamping means are thus --di,sengaged fronrthe paper in, whenthe bars 7 begin to leave the horizontal plane to pass around the-wheels.21 The f clamping aneans .remain' in these positions ss while passingbet-ween the bottom parts of,v the sprocketwheels 2 and 3V and as thechainsqi rise the ed cs 33 of the levers 10 encounter --clam pingdeviceupon the aper sons to me holdall the several layers 0 papersecurely in place on the bfllS.S() that the paper moves along with thebars. The springs 17 merely serve for the purpose of causing theclamp-wing blocks to adjust themselves to .give 5 an exact and even pressureonv the aper The s ring 17 is nmch weaker than spring 13 an the spring17 only adjusts the block' 15 within the limits prescribed by the stop 10 pins 18, or mother wordsflhels'pring 17 merely keeps the clampingblock in proper relation to the pivoted member and the clamping pressureof the block on the paper is produced by the sprin ,13. It will thus "beseen that the entire; ecdingdevice consists of a single pair of chainsand cross bars and clamping devices supported on the cross bars. 4 v

' Having described our'invention what we claim as new and desire'tosecure by Letters Patentis: I 1. In a paper feed mechanisimthecombination with two endless chains,- of sprocket wheels over which thechains pass, bars. un1t1n the cha ns, clamping devices hinged to'the arsat the ends thereof and cam, tor

alternately lifting the: clamping device's off the bars and applyin themon the paper on the bars, substantia ly as set forth.

In a paper feed mechanism, the combination wit-h two endlesschains, ofsprocketwheels over which the chains pass, bars- I and s rings unitinthe chains,tclamping devices hinged to the bars at the endsthereof andcams for alternately lifting the clamping devices off a and applyingthem on the paper on the bars,

on them, substantially as set forth.

3. In a' paper feed mechanism, the combination with two endless chains,of-sp'rocket wheels over which the chains pass, bars uniting the chains,clamping devices hinged to the bars at the ends thereof and cams for-alternately moving the clamping devices from the bars and mount them tothe bars,

' tiallyas set forth;'

and springs attached to the bars and bearing on the clamping devices, to,holdthem in place, and exert pressure on-them, substan-.

4. In a paper feed mechanism; the combi-- nationwith two endless chains,of wheels' over which the chains pass, bars uniting the chains, aclamping device' pivoted to each end of each bar and composed of a leverpivoted to'the bar, and. a clamping block pivoted toithe lever, and camsat the caring on the clamping devices to he (1 them in placeandtoexertpressure 30 sprocket wheels for alternately raising andlowering the clamping devices, substantially as set forth. I i

5. In a paper feed mechanism, the combibar and bearing on the pivotedlever, and

- cams at the sprocket wheels ,for alternately raisrng'and lowerin theclamping devices, substantially as set orthp 6. In a paper feedmechanism, the combi 'nationwith two endless chains, of wheels overwhich the chains pass, bars uniting the. chains, a clamping devicepivoted to each {end of "each-bar and composed of a lever pivoted to thebar, and a clamping block pivptedto the said lever, a spring secured tothe bar and bearing on that end of the lever opposite, to the one towhich the block is pivotedand means at the sprocket wheels -foralternately raising and lowering.

the clamping devices, substantially as set forth;

7. In a paperfeed mechanism, the combination with two endless chains, ofsprocket wheels over-which the chains pass, bars uniting'thechains,aclamping device piv-' oted to each end oteach bar and composed ofaforked lever embracing the bar, a clamping. block pivoted to the'lever,a spring interposed between the pivoted lever and thecla1nping=block,.and a-spring securedto the-bar and bearin on the edgesof the forked part'of the ever, and cams at the .sproc'ket wheels foralternately raising and lowering the clamping devices, substantially asset forth. T

Signed this'21st day' of September A. D.

1908. .7 GEORGE B. KELLY. FREDERICK L. WOOD.

Witnesses:

GEORGE :KAY, v OSCAR G Nz.

